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Outer skin material for hangar, and preparation method of outer skin material

An outer skin and hangar technology, which is applied in the field of outer skin materials of hangars and their preparation, can solve the problems of surface discoloration, reduced visible light effect, no infrared stealth of outer skin materials, etc., and achieves excellent weather resistance, realizes Infrared stealth performance and thermal insulation performance, the effect of reducing the fluctuation of differential pressure

Inactive Publication Date: 2017-02-22
EAGLES MEN AERONAUTIC SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now the outer skin material of the inflatable hangar is seriously faded after long-term exposure to sunlight and rain, resulting in a reduction in the effect of visible light stealth, and the outer skin material does not have the function of infrared stealth

Method used

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  • Outer skin material for hangar, and preparation method of outer skin material
  • Outer skin material for hangar, and preparation method of outer skin material

Examples

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Effect test

Embodiment 1

[0024] like figure 1 As shown, the outer skin material of the present invention includes a weather-resistant layer 1, a first adhesive layer 2, a reinforcement layer 3, a second adhesive layer 4 and a heat insulation layer 5, and the reinforcement layer 3 passes through the first adhesive layer 2 It is glued to the weather-resistant layer 1, and the other side of the reinforcement layer 3 is glued to the second adhesive layer 4 and the heat insulation layer 5.

[0025] The weather-resistant layer 1 is made of polyether-type TPU film with a thickness of 10-20 μm and a density of 12-24 g / m 2 .

[0026] The reinforcing layer 3 is 210D nylon fiber Oxford cloth, the weaving density is 25*25 per centimeter, and the density is 120-130g / m 2 .

[0027] Both the first adhesive layer 2 and the second adhesive layer 4 use two-component polyurethane glue with a density of 10-15g / m 2 .

[0028] The heat insulation layer 5 is a double-sided aluminized PET film with a thickness of 7 μm a...

Embodiment 2

[0031] The following will be combined with figure 2 The preparation technology of the present invention is described in further detail with embodiment.

[0032] The present invention also provides a method for preparing the outer skin material, which comprises the following steps:

[0033] Step 1: Color the nylon fiber Oxford cloth according to the design, and cure it at 40°C for 24 hours.

[0034] Step 2: After gluing the nylon fiber Oxford cloth, casting a polyether-type TPU film, aging at 40° C. for 24 hours.

[0035] Step 3: Apply corona-glued double-sided aluminized PET film to the surface of the matured cast TPU nylon fiber Oxford cloth, and cure at 40°C for 24 hours.

[0036] In the heat insulation layer of this embodiment, the double-sided aluminized PET film is used to replace the single-layer aluminized PET film. After the composite heat insulation test, it is found that the emissivity is only 0.14, which is far lower than the required 0.6. The component polyuret...

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Abstract

The invention belongs to the field of aerospace materials, and in particular relates to an outer skin material for a hangar, and a preparation method of the outer skin material. The outer skin material for the hangar comprises a weather-proof layer, a first bonding layer, a reinforcement layer, a second bonding layer and a heat insulation layer, wherein the reinforcement layer is connected with the weather-proof layer in a cementing way by the first bonding layer, and the other side of the reinforcement layer is connected with the heat insulation layer in a cementing way by the second bonding layer. The outer skin material provided by the invention has good gas barrier property, weather fastness, high-frequency weldability, wear resistance and mechanical property; a double-sided aluminized polyethylene terephthalate (PET) film adopted by the outer skin material has low absorptivity-emissivity ratio, thus effectively reducing the fluctuation, caused by temperature change, of inside and outside pressure difference of skin; the outer skin material for the hangar is prevented from fading in an outdoor severe environment, and has excellent weather fastness; the outer skin material realizes infrared stealth performance and heat-insulating property.

Description

technical field [0001] The invention belongs to the field of aerospace materials, and in particular relates to an outer skin material used for hangars and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, aircraft has played an increasingly important role in national defense and military fields such as homeland defense, solving local crises or conflicts, and coast guards. A variety of hangars and boats have appeared for the ground anchor storage and later maintenance of these airships and aircraft. The traditional hangar boat garage is mostly a hard structure boat garage such as reinforced concrete or steel structure. The air film structure began to appear in the 1950s, and was gradually applied to the hangar and boat garage. [0003] In recent years, as the situation in the South China Sea has become increasingly tense, the possibility of large-scale operations has increased day by day. It is very impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B27/08B32B27/12B32B27/34B32B27/36B32B27/40B32B33/00B32B37/12B32B38/00B32B38/18
CPCB32B5/024B32B7/12B32B27/08B32B27/12B32B27/34B32B27/36B32B27/40B32B33/00B32B37/12B32B38/0008B32B38/145B32B38/18B32B2262/0261B32B2307/304B32B2307/416B32B2307/542B32B2307/558B32B2307/71B32B2307/714B32B2307/7242B32B2571/02
Inventor 郭齐红张丽娇
Owner EAGLES MEN AERONAUTIC SCI & TECH GRP
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